GTM Libra Electrical Problem - Headlights
GTM Libra Electrical Problem - Headlights
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Discussion

emicen

Original Poster:

9,150 posts

242 months

Wednesday 10th September 2008
quotequote all
Posting for a mate (and before it is suggested, he has tried joining the GTM owners forum thing but not had any response).

Basically, driving home the other night, his headlights went. He described it as a gradual phase down, rather than pop-gone. So having lost dipped and full beam, he discovered the flash function still worked the full beam so decided to get home by holding the stalk in the flash position.

That lasted a couple of minutes then the same problem occured. Now there is nothing from the sidelights, headlights and full beams.

Obviously, all fuses have been checked and the stalk itself seems to be ok (preliminary multimeter checks completed).

Is this a known issue with the Libra with a simple fix or is there much head scratching ahead?

Any suggestions what would cause a failure in that manner?

rdodger

1,089 posts

227 months

Wednesday 10th September 2008
quotequote all
First get him to join teamgtm.com We respond!

Second, get him to check the multi plug under the front clam (ns wing area)that connects the lights and clean the contacts.

The stalk is known to go faulty. Is it rover 100 or metro?

Which car has he bought?

emicen

Original Poster:

9,150 posts

242 months

Wednesday 10th September 2008
quotequote all
rdodger said:
First get him to join teamgtm.com We respond!

Second, get him to check the multi plug under the front clam (ns wing area)that connects the lights and clean the contacts.

The stalk is known to go faulty. Is it rover 100 or metro?

Which car has he bought?
NS = passenger side? (always confused me that one). The block of 4 fuses (3 60amp ones and a 30 iirc) were all fine, connections a little grubby but didnt see anything that would cause a problem.

The stalk is a Metro one afaik. We tested the flash function with the multimeter and it worked fine but the slide switch could be dodgy.

After stripping out the dash cover, there was a fuse blown in behind the instrument cluster. Replacing this didnt sort the problem though. 15amp fuse located in a block of 3 with some relays just behind and to the right of the instrument cluster (looking from the drivers seat).

I dont know which gtm site it was he tried to join but I'll point him at teamgtm.com

rdodger

1,089 posts

227 months

Wednesday 10th September 2008
quotequote all
Yes passenger side.

The plug will be near a hole through the inner wing. It just connects all the lighting wiring.

Because the cars are mostly self built locations of fuses and relays are often different.

I'm not a wiring expert. Not any kind of expert! If it's not the multi plug then I would swop the stalks as its dead easy and they are known to fail occasionally. I can't see it being the dim dip relay as you would still have side lights. There have also been cases of faulty fuse boxes where joints go dry or tracks crack.

I'm sure someone with a bit more knowledge will be along soon. I will have a look on the forum for a solution.

Edited by rdodger on Wednesday 10th September 12:18

Paul Drawmer

5,123 posts

291 months

Wednesday 10th September 2008
quotequote all
emicen said:
After stripping out the dash cover, there was a fuse blown in behind the instrument cluster. Replacing this didnt sort the problem though. 15amp fuse located in a block of 3 with some relays just behind and to the right of the instrument cluster (looking from the drivers seat).
This sounds like an additional fuse/relay setup fitted to stop the headlamps failing(!) or it maybe the original fuse box.

There have been known issues with the original Metro fuse box (above driver's right knee access from below) failing due to corrosion of teminals. Check the headlamp fuses, and the contacts for continuity.

I'll post the Metro headlamp fuse number when I get in this evening (and looked it up in Haynes)

millwap

19 posts

226 months

Wednesday 10th September 2008
quotequote all
I had the same problem on a Rover 100 some years ago (scary when it happened at night on an unlit country road) - it turned out to be a fault in the column switchgear and a new unit solved the problem.